Evaluación potencial de bioextrusión del retamo espinoso (Ulex europaeus) y retamo liso (Genista monspessulana), como sustrato para cuatro especies de bosque altoandino en la región suroriental de Bogotá

Abstract

The issue caused by the uncontrolled expansion of thorny broom (Ulex europaeus) and smooth broom (Genista monspessulana) in the high-Andean forests of southeastern Bogotá was addressed. The use of these invasive shrubs as a bioextruded substrate for cultivating four native species was proposed: Myrcianthes rhopaloides, cedar (Cedrela montana), pagoda (Escallonia myrtilloides), and corono (Xylosma spiculifera). To this end, the bioextrusion process was evaluated as an alternative capable of inactivating broom seeds, thereby reducing the potential for regrowth while producing a nutrient-rich material. The analysis included variables such as mortality, height, leaf count, basal diameter, and seedling biomass, comparing different proportions of bioextrudate. This approach aimed not only to demonstrate the safety of the resulting material but also to verify its effectiveness in enhancing the performance of native species, making it suitable for ecological restoration projects and the sustainable management of invasive plant residues.